| Abstract: | ![]()
A fundamental equation applicable to any kind of chromatography is solved on the assumption that velocity and chromatographic diffusion coefficient of the species under consideration are constant and its concentration is finite. The results can be used to describe the chromatographic behavior of the species in breakthrough, reverse breakthrough and band operations, covering not only the chromatographic distribution of isotopes but also that of easily separable chemical species, especially in the case of elution chromatography. Some numerical calculations are performed to show how the shapes of the isotopie mole fraction and isotopie concentration profiles in band operation of a two-isotope chromatography are influenced by the velocity ratio and chromatographic diffusion coefficient ratio of the two isotopes, and by the initial band width. These calculations yield some interesting results, including a clear indication of the possibility of reverse enrichment. |
